Declension table of ?antamāna

Neuter	Singular	Dual	Plural
Nominative	antamānam	antamāne	antamānāni
Vocative	antamāna	antamāne	antamānāni
Accusative	antamānam	antamāne	antamānāni
Instrumental	antamānena	antamānābhyām	antamānaiḥ
Dative	antamānāya	antamānābhyām	antamānebhyaḥ
Ablative	antamānāt	antamānābhyām	antamānebhyaḥ
Genitive	antamānasya	antamānayoḥ	antamānānām
Locative	antamāne	antamānayoḥ	antamāneṣu

Compound antamāna -

Adverb -antamānam -antamānāt